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- 1. Multiple Choice
Which of the following is an irreversible change?
Combing hair
Crushing a can
Burning paper
Dissolving salt in water
- 2. Multiple Choice
Which of the following is reversible change?
Bending a wire
Making tea
Rusting of iron
Sprouting a seed
- 3. Multiple Choice
Which of the following is a chemical change?
Harvesting cotton fibres
powdering jeera seeds
Making cheese from milk.
Cutting an apple
- 4. Multiple Choice
Which of the following is an application of expansion due to heat.
Rotating of a fan
Rusting of iron
Working of a television
Working of a mercury thermometer
- 5. Multiple Choice
Which of the following contracts the least.
Solida
Liquids
Gases
All contract equally.
- 6. Multiple Choice
MELTING OF ICE IS WHAT CHANGE
PHYSICAL CHANGE
CHEMICAL CHANGE
- 7. Multiple Choice
BURNING OF WOOD IS WHAT CHANGE
PHYSICAL CHANGE
CHEMICAL CHANGE
- 8. Multiple Choice
CHEMICAL CHANGE IS REVERSIBLE
TRUE
FALSE
- 9. Multiple ChoiceWhich of these is NOT a reversible change?Water to IceJuice to PopsicleCookie Dough to CookieMelting Chocolate
- 10. Multiple ChoiceDefine chemical changeAn irreversible chemical reaction involving the rearrangement of the atoms of one or more substancesA reversible reactionChemicals become seperateI don't know
- 11. Multiple ChoiceWhich is a chemical change?Breaking glassBaking a cakeShredding paperMelting ice
- 12. Multiple ChoiceIs heating sugar to make caramel a physical or chemical change?ChemicalPhysical
- 13. Multiple ChoiceChanging liquid to a gas is calledevaporationcondensationmeltingfreezing
- 14. Multiple ChoiceWhat is happening in the statement below?
The ice cube melted.Matter is changing from a liquid to a solid.Matter is changing from a liquid to a gas.Matter is changing from a solid to a liquid.Matter is changing from a gas to a liquid. - 15. Multiple ChoiceThe picture shows an example of a ______________ change.chemicalphysicalirreversiblefreezing
- 16. Multiple ChoiceA change in the size, shape, or state of matter.chemical changephysical changechemical reactionelectron change
- 17. Multiple ChoiceMs. Johnson gave all of her students a box of M&M's but one of them was allergic to red dye. What must the student do to make sure that the candy is safe for him to eat?Make a new mixture which is a physical change.Separate the mixture which is a physical change.Make a new substance which is a physical change.Make a new substance which cannot be reversed.
- 18. Multiple ChoicePhotosynthesis is an example of aphysical changechemical change
- 19. Multiple ChoiceAdding baking soda and vinegar together and it fizzes and creates carbon dioxide.ChemicalPhysical
- 20. Multiple Choice
Reversible Change
Irreversible Change
Both options are correct
None of the above
- Answer choicesTagsAnswer choicesTags